my $discard = <$fh> for 1 .. 1;
# $discard no longer in scope here.
I don't get the point, in what sense is your example better than this?
<$fh>;
or
<$fh> for 0..2;
The diamond operator doesn't use $_ as default, so using it in "void" context silently reads the next line of the filehandle
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